insert into schedule_group_strategy_user_time_table uid, group_id, group_strategy_id, specific_date, start_time, end_time, type, #{item.uid}, #{item.groupId}, #{item.groupStrategyId}, #{item.specificDate}, #{item.startTime}, #{item.endTime}, #{item.type}, delete from schedule_group_strategy_user_time_table where group_strategy_id = #{groupStrategyId} and specific_date >= #{firstScheduleDate}